Refactor ActivityStatus to not store current activity

base/android/java/src/org/chromium/base/WindowCallbackWrapper.java

Index: base/android/java/src/org/chromium/base/WindowCallbackWrapper.java
diff --git a/base/android/java/src/org/chromium/base/WindowCallbackWrapper.java b/base/android/java/src/org/chromium/base/WindowCallbackWrapper.java
new file mode 100644
index 0000000000000000000000000000000000000000..20b5c1707463c0d7f8919c42923cda2adfd8ab97
--- /dev/null
+++ b/base/android/java/src/org/chromium/base/WindowCallbackWrapper.java
@@ -0,0 +1,134 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.base;
+
+import android.view.ActionMode;
+import android.view.ActionMode.Callback;
+import android.view.KeyEvent;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.Window;
+import android.view.WindowManager.LayoutParams;
+import android.view.accessibility.AccessibilityEvent;
+
+/**
+ * A wrapper for a Window.Callback instance, allowing subclasses to listen to or override specific
+ * window messages.
+ */
+class WindowCallbackWrapper implements Window.Callback {
+    private final Window.Callback mCallback;
+
+    public WindowCallbackWrapper(Window.Callback callback) {
+        mCallback = callback;
+    }
+
+    @Override
+    public boolean dispatchGenericMotionEvent(MotionEvent event) {
+        return mCallback.dispatchGenericMotionEvent(event);
+    }
+
+    @Override
+    public boolean dispatchKeyEvent(KeyEvent event) {
+        return mCallback.dispatchKeyEvent(event);
+    }
+
+    @Override
+    public boolean dispatchKeyShortcutEvent(KeyEvent event) {
+        return mCallback.dispatchKeyShortcutEvent(event);
+    }
+
+    @Override
+    public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
+        return mCallback.dispatchPopulateAccessibilityEvent(event);
+    }
+
+    @Override
+    public boolean dispatchTouchEvent(MotionEvent event) {
+        return mCallback.dispatchTouchEvent(event);
+    }
+
+    @Override
+    public boolean dispatchTrackballEvent(MotionEvent event) {
+        return mCallback.dispatchTrackballEvent(event);
+    }
+
+    @Override
+    public void onActionModeFinished(ActionMode mode) {
+        mCallback.onActionModeFinished(mode);
+    }
+
+    @Override
+    public void onActionModeStarted(ActionMode mode) {
+        mCallback.onActionModeStarted(mode);
+    }
+
+    @Override
+    public void onAttachedToWindow() {
+        mCallback.onAttachedToWindow();
+    }
+
+    @Override
+    public void onContentChanged() {
+        mCallback.onContentChanged();
+    }
+
+    @Override
+    public boolean onCreatePanelMenu(int featureId, Menu menu) {
+        return mCallback.onCreatePanelMenu(featureId, menu);
+    }
+
+    @Override
+    public View onCreatePanelView(int featureId) {
+        return mCallback.onCreatePanelView(featureId);
+    }
+
+    @Override
+    public void onDetachedFromWindow() {
+        mCallback.onDetachedFromWindow();
+    }
+
+    @Override
+    public boolean onMenuItemSelected(int featureId, MenuItem item) {
+        return mCallback.onMenuItemSelected(featureId, item);
+    }
+
+    @Override
+    public boolean onMenuOpened(int featureId, Menu menu) {
+        return mCallback.onMenuOpened(featureId, menu);
+    }
+
+    @Override
+    public void onPanelClosed(int featureId, Menu menu) {
+        mCallback.onPanelClosed(featureId, menu);
+    }
+
+    @Override
+    public boolean onPreparePanel(int featureId, View view, Menu menu) {
+        return mCallback.onPreparePanel(featureId, view, menu);
+    }
+
+    @Override
+    public boolean onSearchRequested() {
+        return mCallback.onSearchRequested();
+    }
+
+    @Override
+    public void onWindowAttributesChanged(LayoutParams attrs) {
+        mCallback.onWindowAttributesChanged(attrs);
+    }
+
+    @Override
+    public void onWindowFocusChanged(boolean hasFocus) {
+        mCallback.onWindowFocusChanged(hasFocus);
+    }
+
+    @Override
+    public ActionMode onWindowStartingActionMode(Callback callback) {
+        return mCallback.onWindowStartingActionMode(callback);
+    }
+
+}